Carbureter.



H. W. ODLIN.

CARBUHETER.

APPLICATION FILED JUNE M1914, 1,321,073. Patented Nov. 4, 1919.

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CARBUHEYER.

APPLICATION FILED :uns 4.1914.

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' Surea=t0-prridemeapsir A rees of .suctaonpr .partial ygzcuunis arepro UNITED STATES. OFFICE.

HENRY W. ODLIN, 0F EDGARTOWN, MASSACHUSETTS, ASSIGNOR, BY DIRECT AND MESNE ASSIGNMENTS, T0 STROMBERG MOTOR DEVICES COMPANY, 0F CHICAGO, ILLINOIS, A CORPORATION 0F ILLINOIS.

CARBURETER.

Specification of Letters Patent.

Patented N ov. 4, 1919.

Application tiled June 4, 1914. Serial No. 842,890.

the mixing chamber or spraynozzle thereinto providencia wherebyihe liquid fuel contained within a storage tank arranged belowthecarbureter may be autpmatically suction y i "formed in 1a' 'continit or' hff 71,05 Thiseoiiduit orshell is pr'eferaliliyeat'inte' fed tor the weerwil'v or.` resel'rlors" or partialvauum created by the operation 0f thengine dispnsin smiths of nohigithlquid .fiwiiethesfregetag n @Pressure-elimini etinelliairesmehr... ll

ced-in.' the e rentrera@ the .le ing chamber-,m5 ereby the apparatus' wille erate satisfactorily; .and provideap-l paratus of .the above mentioned character which is simple in construction, inexpensive to manufacture, compact, automatic inoperation, and Vconvenient'. in luse'. i A Other objects. and advantages of themvention wilLbe a parentV diiringn the coursfe -o'f the follwilllg- @Scriptipna In Athe accompanying i a part of this specification and in which like numerals are employed to designate like parts throughout the same,

Figure 1 isl a central longitudinal sectional view throu h a carbureter embodying my invention, anti v 'g Fig. 2 is a similar ,'view through a slightly different form of the invention.

In the drawings, wherein for the purpose of illustration is shown a preferred embodiment of my invention, attention being called to Figs. 1 and 2, the numeral 5 designates nn auxiliary reservoir or shell for holding liquid fuel suoli as gnsolene 0r thel like to he mixed with or cnrlinret the air. The nunicrnl G designates n main reservoir, the sinne being preferably arranged below the :inxilinry reservoir 1n end-to-end relation, but not necessarily restricted to such are level ofthe liquidl fuelk in the ieseryoir, which supplesthe same' "the main seated' therewith t b 'mi' siiitab eff-lewis;

drawings forming vof the rangement. In the present arrangement, the lower end 7 of the auxiliary reservoir closes the upper end of the main reservoir 6, as

shown.

Extending into the up er end of the auxiliary reservoir 5 is a iquid fuel supply pipe 8, connected with a liquid fuel storage tank (not shown) which' is, arranged below Athe reservoirs 5 and 6. In 1the operation of` my ap arat the liquidfuel Ais su lied throug theuiipe 8 into the auxiliary prliis'ervoir 5, within :tid ofpressure exceed 1 sure upon the liquidffuelrlield"within the Storag .f A: i nl.-

Preferably arranged .upon y one side'ofthe lsuction o r partial vacuum created e auxiliary reservoir, 'withoutthe ing atinospherie presinain reservoir 6'11s a" chamber-9,

i nini diy'ffmi-` lower end of theeonduitihhell I() is' formed open for the admission of 'aiantl ahutterily valve`12 is preferably aiangedtherein to regulate the passage of the 'air therein. Arranged withinthe upper portion' of the conduit orshell 1,0 'is a Second butter-.fly or throttle valve' 1 3, fifeutl`-ix'il l the jsup ly operate the engine. Above the valve 13 is an auxiliary air supply ypipe 14, communicating withthe vconduit or shell l'throii h ports 15. The suppl 'of air throii litlie ipe Mis oontrolledby: shutter-va ve 16. n operation, the valves 12 13, and 16 are all o eratively connected whereby they are simu taneousl operated by the throttlelever, 'which in an automobile .is ordinarily carried by the steerin wheel.

Disposed between t e u per end ofthe auxiliary reservoir 5 and t e upper end of the conduit or shell l0 is a suction pipe 17, of relatively small diameter preferably having a bore of substantially one-eighth of an inch in diameter, thc same being provided with a check valve 18 opening toward the conduit or shell 10, whereby air may be .l yein'aceti` d-4 'ance with the speed at whicli'it is desiredtn as shown.

withdrawn or exhausted from the auxiliary reservoir 5 inte the conduit or 'shell 10. but air or 'annot pass' in am opposite dlrection in this pipe 17. The function of having the pipe 17 of this small diameter is to provide means whereby the suction or partial vacuumV within the auxillary reservoir 5 is lessthan the suction or partial vacuum in the mixing chamber 9 forvapurpose to be more fully explained. Inoperatlon, I haveolllldhet a,suctipp vor partial vacuum ofabont duced in. lhmievsehamber i while e SUG: tion or partial vac'uum of about two pounds, more or less, ,isi reduced in the auxiliary reservoir; 5.- 1,..

, o wer mesma? renee-ues @when by uw. eeager'tbeuhse mailen ma f Jenner,eeintehenezlam y en creatures l Y as S We Blf-ifel lyetpld Pin 0r delieefpafrrenaei promeut to the apentnred end Vof thenozale v,21, to a1. in spraying the; `-gasolener'or the like.' It 1s to be understoodthat I may employ any other form of spray deviceA y The auxiliary reservoir 5 is provided preferably upon. t',sl,1 1pper. V.end with an opening adapted to place thei'nteriorI ofthe reser-l voir in commilnication with the atmosphere, the same being'.V prefcrably'in the form of a conduit 24, haylng its upperA end open and heveledi` toprovide a valve seat for an upwardly opening valve 25. The conduit 24 has communication with the interior of the auxiliary reservoir 5 through apertures 26. The valve 25 is rigidly mounted upon a reciprocatory valve rod 27 operatingwithin a stationary guide 28. Secured to the outer portion of the guide 28 is a4 horizontal arm 29, having a screw-threaded opening to receive an adjusting screw, 30, the inner end of which is dis osed in the path of travel of the outer en of the rod 27, to regulate the extent of outward movement of the rod and the valve 25 carried thereby.v The rod 27 is moved by a reciprocatory rod 31, also operating within the stationary guide 2B. The rod 31 is rigidly connected with a float 32, operating within the auxiliary reservoir 5,

It is thus seen ,nndsjincrie Q1; IBSSTSPTO E `=p,oint,`float32 ,is elevated to open or unseat the valve' 25, thus placing the interior of the weer rh avec;

I,'cationfvclil; j laterally extending openings35, 'jwhichgrec'eve theliqud fuel from the interior of theauiciliary reservoir. The openittlpted to be covered' andc un? ai vertical Yreciprocat'o'ry valve 'to the ilo-at 32to move therewith-. v mixniction with the lower'end: of the OJenig'pr bore 34 is a pipe or conduit r met? mam ingsl 35 are el reduce-ad,

that when the auxiliary reservoir in communication `with the atmosphere, whereby the suction or parbroken and the supply .of gasolenev cut of. The'description thus lfar 1s common Ato bot-h forms of the invention.A

In Fig. 1, the numeral 33 designates a.

casting yor housing preferably formed i t Y u'pvrliln the end "fof, the auxiliary raser-voir.Y e

t Y Iu s'irig 33 is provided ywith an v"or bore 34 having commun1 wvfdlu 36 seepredj Having coin 37, theft, the lower` endfof the main reservoir end of which discharges into same', pre'felfbly having connection with a tubulacoupii'frg 38, extending into the main reservoir and'provided with a valve seat. 39. The numeral 40 designates a valve, or rod having a lower tapered end to engage and disengage' theV4 valve seat 39. The valve or rod 40, at its upper end, extends into the opening of the housing 33, which serves as a `guide for the same. A screw-threaded plug 42 is 'arranged withinthe housing below and adjacent the upper end of the pipe 37, and a retractile coil spring 43 is confined between the plug 42 and the upper end of the valve or rod 40 and attached thereto to move the valve or rod 40 upwardly. The valve orrod 40 is provided below .and adjacent the lower end of the casting or housing 33 with a ring 0r flange 44 rigidly connected therewith, which is engaged by cam heads 45 carried by levers 46, pivoted to the casting or housing 33 to swing in a vertical plane., as shown. The levers 46 are swung upwardly by engagement with a vertically movable float- 47, provided with a central asl e, ne

opening to receive the valve or rod 40, it

for supply Y or bore 49,

the ports 35, opening-34, pipe 37 and through v coupling 3 8 into the lower en'd of the main reservoir 6. This causes the {ioat 47 to rise whereby levers 46 are swung upwardly, and valve 40 moved downwardly or seated `when the level -of the gasolene reaches its prede- Theopeninesis, prngdfbe fglat t with a. portion 53 adapted ffor engageine "[yvitli a fertically ige i ofthe. f movement of the .coat 5 s-fneisaiqsgnqvesi-, ersten ."f ward1y,said levers at their upper end Withmheadslofahd pivoted to thev housing orcastiug at' 61. The" cam Vheads 60 engage a'ring or 'Bange 62 rigidly secured to the 55,-4 whereby when the levers59 -a're swlngiziipwardllyrqd 55 is lowered and valve 54 seated. t is thus l seen that when the ,level pf liquid fuel rises in the auxiliary reservoir, elevati the float 32 and unseatmg the valve 52, va ve 54 being open, such liquid fuel' will pass through ports 50, opening 49 and through ports 51 into the main reservoir 6. U on this supply of liquid fuel into the mam reservoir 6, the fioat 58 thereof rises, swinging' levers 59 upwardly, whereby the cam heads 60 will lower the rod 55 and return the valve 54 to its seat, when the level of liquid fuel within the main reservoir reaches the predetermined pont.

The operation of the apparatus is as follows:-

iVhcn the engine is operating, as is well known, a partial vacuum or suction is crcutcd in the inlet or manifold pipe of the engine, which is transmitted to the shell or conduit 10. This suction or partial vacuum A- the shell or conduit 10. This suction or artial vacuum draws the liquid fuel u serves to draw air in through the shell or conduit 10, such air, when passing through the mixing cham-ber 9 taking up the sprayed' gasolene or other liquid` fuel, whereby the air becomes carburete'd to form the charge. Then this carbureteil air passes the throttle valve 13, it is treated -with a second supply of air, as is customary. A substantial suction or partial vacuum is also created within the upper end of the auxiliary reservoir, 5, as the -pipe 17 serves to establishcommunicationbetween the auxiliary reservoir and wa l through the'ppe 8 for automatica] y fe ing thesame into the auxiliaryreservoir,

such feeding of the liquid fuel being autpmaticallywoontrolled by the,- movement. of the oat actuated valve 25, which serves to make and break the suction or vacuum, Y{'Ths makingorfbreakin of the suctionjor "vacuum occurs uponthel "change of thelevel of the liquid fis l therebyimamtainedconstant. Particular ight of,r erpubie 'attentie-nus called to the-,faecthat b having the pipefl( withI-aielatively smallborehe dem of suction 4or vacuum Jwthn 1110i im? nel, which y -jliary reservoir' 5, isi farsbeneath the :degree suction oifvacuumi within. the mixing-cham.

'"ber '9 "willfservetolwithdraw the liquidifuel 'through-or from the 1"$21 whilefthis action will not be perceptibly o posed^by the suction or vacuum within i t e upper'end-of the auxiliary ray device or nozzle reservoir.`l

Partien arattention is also'calle -totheifact 'thatithe aux'ilia reservoir and .themain reservoir have inV ependently operating :float ervoir 6 is maintained oonstantwith a high same, and'that'various changes in the shape,

size, and arrangement ofparts ma be resorted to' without departing from t e spirit of the invention or the scope of the subjoined claims.

Having thus described my invention, I claim 1. In combination, a carbureting passageway, a fioat chamber associated therewith, a fuel nozz'le connected directly with said float chamber and disposed in said carbureting passage-way, the level of fuel in said fi'oat chamber determining the head mi said nozzle. an auxiliary clininlur havinpr n restricted connection with said pnssngo\rn v. n fuel supply leading to said auxiliary chamber, Hout valve mechanism for making und breaking thc vacuum in said auxiliary chamber und controlling the fuel outlet therefrom, a conduit- 'directly connecting said auxiliary chamber and said float'chamber, and float valve'mechanism in said float chamber controlling said conduit.

2. In combination, a carbureting passageway, a float chamber associated therewith, a fuel nozzle connected directly with said float chamber andv disposed in Asaid-carbureting passageway,` the level'offuel in said float chamber determining' the .head onsaid nozzle, an auxiliar chambesuperposed upon said lloatcha'm er and having a.V restricted connection with' said passageway, a fuel supply leading to, saidf auxiliary chamber, float. valve Amechanism for .making andbreaking the"vacum iiisaid auxiliary-:chamber and controlling the fuel outlet therefrom,A a -conduit directly- .eonnectin I., saidiV auxiliary chamber-and -sidi'iloetnmberfand oat valve mechanism liillgsaidriloatichamber leontroI'lingjsaileonduitn-.Ei 'io wel um pose'iA uponsaid fldtmlianibel-:andhaving a.`

restrctedeonnectionfwithsaids l, gway, affuelfsu ply leading te` sai auxiliary chamber; oetivalve for making ber and disposed in said carbureting pas, sageway,anauxiliarychambet having a restricted-connection with -said=-paseageway, a fuel supplylleading to auxiliary chamber, float ruhe-mechanismonmaking and ary-.chambenand'saidioat chami way, n [lont chamber associated therewith, a

fuel nozzle connected directly with said float chamber and disposed in said carbureting passageway, the level of fuel in Said float chamber determining the head on said nozzle, an auxiliary chamber having a restricted connection with said passageway, a fue] snpply lending to saidfauxlary chamber, float A valve mechanism for making and breaking the rau-num in said auxiliary chambe'rand controllingr thefuel outlet. therefrom, a conduit Icadin lhroufvh the bottom of saidV auxiliar cham er and directly connecting saidl auxi lary ,chamber and" said l'loat chamber; and `float Yalve,"meehdnisni infsa'id oat chamber cotrolliiigilsaid condiiitfj- 'and its u per end operating -Within the lower end f t ie tubular housing, land 'iloatope ated means arranged within the main reser- .voirV and adapted to seat the second named valve upon its upward movement. Q

VIn testiinon rvhereof I alix my signature inpresence o twlo witnesses. z l

HEN RY W. lODLlN. f 

